import java.util.Scanner;
public class Test1 {
    public static void main(String[] args) {
        Arr a=new Arr();
        Scanner b=new Scanner(System.in);
        System.out.println("输入查询第几个数");
        int c=b.nextInt();
        System.out.println("第"+c+"个数为"+a.cha(c));
    }
}
